body {
    background-color: #F9F9F9;
  }
  .w {
    width: 1080px;
    margin: auto;
  }
  .fl {
    float: left;
  }
  .fr {
    float: right;
  }
  /* 头部开始 */
  .top {
    height: 90px;
  }
  .top .logo {
    line-height: 90px;
    font-size: 20px;
  }
  .top .logo img {
    width: 200px;
    height: 70px;
  }
  .top .num {
    transform-origin: top center; 
    animation: phone 1s linear infinite;
  }
  .top .num span {
    font-size: 20px;
    line-height: 90px;
    color: #00a0e9;
    font-weight: 700;
  }
  @keyframes phone {
    20% {
        transform: rotate(15deg);
    }
    40% {
        transform: rotate(-10deg);
    }
    60% {
        transform: rotate(5deg);
    }
    80% {
        transform: rotate(-5deg);
    }
    100% {
        transform: rotate(0deg);
    }
  }
  .nav {
    position: relative;
    position: sticky;
    top: 0;
    z-index: 9990;
    width: 100%;
    height: 45px;
    background-color: #009fe9;
  }
  .nav a {
    display: block;
    margin-right: 5px;
    width: 108px;
    height: 45px;
    line-height: 45px;
    text-align: center;
    font-size: 12px;
    color: #fff;
  }
  
  .nav .cur {
    background-color: rgba(0, 0, 0, 0.2);
  }
  .nav_menu {
    display: flex;
    width: 550px;
    justify-content: space-around;
    align-items: center;
    height: 45px;
    margin-left: 140px;
    color: #fff;
  }
  .menu_item {
    position: relative;
    flex: 1;
    height: 100%;
    line-height: 45px;
    text-align: center;
    transform-style: preserve-3d;
    transition: all 0.5s;
    /* margin: 0 5px; */
  }
  .menu_item:hover {
    cursor: pointer;
    transform: rotateX(90deg);
  }
  .home,
  .web_home {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    perspective: 300px;
  }
  .home {
    z-index: 11;
    transform: translateZ(25px);
  }
  .web_home {
    background-color: rgba(0, 0, 0, 0.2);
    transform: translateY(25px) rotateX(-90deg);
  }
  /* 搜索框 */
  .nav .search-box {
    position: absolute;
    top: 5px;
    right: 18%;
    transition: translate(-50%, 50%);
    height: 35px;
    background-color: #fff;
    border-radius: 35px;
    overflow: hidden;
  }
  .search-box:hover > .search-txt {
    width: 240px;
    padding: 0 6px;
  }
  .nav .search-btn {
    display: flex;
    float: right;
    margin-right: 0;
    color: #000;
    width: 35px;
    height: 35px;
    border-radius: 35px;
    background-color: #fff;
    justify-content: center;
    align-items: center;
  }
  .nav .search-txt {
    border: none;
    background: none;
    outline: none;
    float: left;
    padding: 0;
    color: #000;
    transition: 0.4s;
    line-height: 35px;
    width: 0;
  }
  /* m-suspen*************固定定位******** */
  .m-suspen {
    position: fixed;
    right: 10px;
    top: 400px;
    z-index: 3;
  }
  
  .m-suspen li {
    position: relative;
    margin-bottom: 18px;
    width: 65px;
    height: 65px;
  }
  .m-suspen li span:hover {
    /* 鼠标一经过外面的盒子 外面的大盒子沿着y轴旋转180度 */
    transform: rotateY(360deg);
  }
  .m-suspen li span {
    display: block;
    width: 65px;
    height: 65px;
    line-height: 65px;
    font-size: 30px;
    text-align: center;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 2px 10px rgb(0 0 0 / 20%);
    transition: all 1s;
  }
  
  .m-suspen li.u-sp2 span {
    color: #62b230;
  }
  
  .m-suspen li.u-sp3 span {
    color: #d81e06;
  }
  
  .m-suspen li.u-sp4 span {
    color: #41abd2;
  }
  
  .m-suspen li.u-sp6 span {
    color: #13519b;
  }
  /* .header .h-list li:hover {
    width: 110px;
  } */
  .header .fis {
    background-color: rgba(0,0,0,.1);
  }
  .header .inp {
    position: relative;
    margin-top: 4px;
  }
  .header .inp input {
    width: 340px;
    height: 36px;
    line-height: 45px;
    border-radius: 18px;
    color: #b0b0b0;
    text-indent: 1em;
    font-size: 12px;
  }
  .header .inp span {
    position: absolute;
    left: 300px;
    top: 3px;
    font-size: 22px;
  }

  /* 头部结束 */
/* bear */
.bear {
  height: 100px;
  background-color: #f3f3f3;
  margin-top: 50px;
}
.box_box {
  position: absolute;
  width: 200px;
  height: 100px;
  background: url(../images/bear.png) no-repeat;
  /* 可以添加2组动画 用逗号隔开就好 */
  animation: bear 1s steps(8) infinite, move 3s forwards;
}
@keyframes bear {
  0% {
    background-position: 0 0;
  }

  100% {
    background-position: -1600px 0;
  }
}
@keyframes move {
  0% {
    left: 0;
  }

  100% {
    left: 50%;
    transform: translateX(-50%);
  }
}

/* 尾部开始 */
  .footer {
    height: 55px;
    line-height: 55px;
    background-color: #009fe9;
  }
  .footer .fo1,s
  .footer .fo2,
  .footer .fo3,
  .footer .fo4 {
    float: left;
    width: 203px;
    height: 55px;
    margin: 0 25px;
  }
  .footer .fo1 span,
  .footer .fo2 span,
  .footer .fo3 span,
  .footer .fo4 span {
    float: left;
    font-size: 24px;
    color: #fff;
    font-weight: 700;
  }
  .footer .fo1 h2,
  .footer .fo2 h2,
  .footer .fo3 h2,
  .footer .fo4 h2 {
    float: left;
    color: #fff;
    margin: 0 10px;
  }
  .footer .fo1 p,
  .footer .fo2 p,
  .footer .fo3 p,
  .footer .fo4 p {
    float: left;
    color: #fff;
  }
  .footb {
    height: 250px;
  }
  .footb dt {
    font-size: 16px;
    color: #333;
    margin: 35px 20px 30px 70px;
  }
  .footb dd {
    font-size: 14px;
    margin-left: 70px;
    color: #a5a3a2;
  }
  .footb .ddt {
    opacity: 0;
  }
  .footb .bx {
    float: left;
    width: 2px;
    height: 170px;
    background-color: #e8e8e8;
    margin-left: 90px;
    margin-top: 30px;
  }
  .footb .bx1 {
    float: left;
    width: 2px;
    height: 170px;
    background-color: #e8e8e8;
    margin-top: 30px;
    margin-left: 43px;
  }
.footer {
  height: 55px;
  line-height: 55px;
  background-color: #009fe9;
}
.footer .fo1,
.footer .fo2,
.footer .fo3,
.footer .fo4 {
  float: left;
  width: 203px;
  height: 55px;
  margin: 0 25px;
}
.footer .fo1 span,
.footer .fo2 span,
.footer .fo3 span,
.footer .fo4 span {
  float: left;
  font-size: 24px;
  color: #fff;
  font-weight: 700;
}
.footer .fo1 h2,
.footer .fo2 h2,
.footer .fo3 h2,
.footer .fo4 h2 {
  float: left;
  color: #fff;
  margin: 0 10px;
}
.footer .fo1 p,
.footer .fo2 p,
.footer .fo3 p,
.footer .fo4 p {
  float: left;
  color: #fff;
}
.footb {
  height: 250px;
}
.footb dt {
  font-size: 16px;
  color: #333;
  margin: 35px 20px 30px 70px;
}
.footb dd {
  font-size: 14px;
  margin-left: 70px;
  color: #a5a3a2;
}
.footb .ddt {
  opacity: 0;
}
.footb .bx {
  float: left;
  width: 2px;
  height: 170px;
  background-color: #e8e8e8;
  margin-left: 90px;
  margin-top: 30px;
}
.footb .bx1 {
  float: left;
  width: 2px;
  height: 170px;
  background-color: #e8e8e8;
  margin-top: 30px;
  margin-left: 43px;
}
/* 尾部结束 */